I fail to see what someones age, race, height and weight have to do with it. The media take on the 'nerd' is seldom correct in my experience.
30 years old
Caucasian (Canadian-French background)
6 foots (Had to reference caveman ugglympics...it comes up so rarely)
235 pounds (add 5-10 in the winter, subtract 5-10 in the summer)
That said, I fit nicely into the nerd archetype. I'm an obese D&D/Magic/Gamer with an imperfect complexion, glasses, balding and almost always single...that's right ladies.